"To learn the technique, the bees were trained under one of three conditions: some observed a previously trained bee move the furthest ball to the centre to gain reward, others received a "ghost" demonstration, where a magnet hidden underneath the platform was used to move the ball, and a third group received no demonstration, where they found the ball already at the centre of the platform with reward.

The bees that observed the technique from a live or model demonstrator learned the task more efficiently than those observing a "ghost" demonstration or without demonstration.

The bees solved the task in a different way than what was demonstrated, suggesting that observer bees did not simply copy what they saw, but improved on it. This shows an impressive amount of cognitive flexibility, especially for an insect."